Home / 1,385,210,289.75-1,911,592,043.82-750,131,877.48

Finding the Fourth Proportional to 1,385,210,289.75, 1,911,592,043.82 and 750,131,877.48

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Solution

The fourth proportional to 1,385,210,289.75, 1,911,592,043.82 and 750,131,877.48 is: 1,035,182,989.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,210,289.75 : 1,911,592,043.82 = 750,131,877.48 : x
  2. Step 2: Convert to fraction form
    1,385,210,289.75/1,911,592,043.82 = 750,131,877.48/x
  3. Step 3: Cross multiply
    1,385,210,289.75x = 1,911,592,043.82 × 750,131,877.48
  4. Step 4: Simplify right side
    1,385,210,289.75x = 1,433,946,128,806,526,976
  5. Step 5: Solve for x
    x = 1,433,946,128,806,526,976/1,385,210,289.75
  6. Step 6: Final answer
    x = 1,035,182,989.48

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.